Fruit grinder



F. GIORDANO FRUIT GRINDER Jan. 29, 1924.

Filed Nov. 13. 1922 IN VEN TOR AMV Patented den.. 29, 1924.

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PArnr riernenonsco emanano, OF BROOKLYN, Nnwxoiax.

FRUIT GRINDER.

Application filed November 13, 19252. Serial No'. 600,705.

To all whom t f/uu/ concern:

Be it. known that I, FRANCESCO GIORDANO,

a. citizen of the United States, residing in Brooklyn, in the county of Kings and State of New York, have invented certain new and useful improvements in Fruit Grinders, of which the following is a specification.

This invention relates to improvements in presses and more particularly to devices for expressing the juice from grapes and other fruit-s. j

The principal object of the invention resides in the provision of a pair of crushing rollers having means provided on their surfaces for cutting and piercing the fruit skins so that the juice may be readily extracted.

Another object of the invention is to provide a means for yieldably holding the rollers in contact, so that should a stone, pebble or other hard object be accidentally deposited in the machine, it will pass harmlessly through without in any way injuring the rollers.

Still another obj ect of the invention is to provide the cylinders with a plurality of yieldably supported radial pins which upon encountering a hard object will move inwardly without injury until the object is removed from contact.

These and other objects are attained by the novel combination and arrangement of parts hereinafter described and shown in the accompanying drawing, forming a Inat-erial part of this disclosure, and in which Figure l is a top plan view'y of the machine showin g portions broken away to more clearly illustrate the details of construction.

Figure 2 is an end elevation of the device partly in section.

Figure 3 is a fragmentary detail sectional view of one of the rollers illustrating a modified form of piercing pin in det-ail.

Referring to the drawings in detail, the numeral 10 designates a base to which are secured the upstanding side and end walls 11 forming the main body of the device. As shown, this body is provided at its upper end with a hopper 12 through which the matter to be pressed is fed onto the grinding rolls to be more fully hereinafter described.

Extending transversely through the body 1s a horizontal shaft 13 having at one end a fixed crank 14 by means of which the shaft is rotated. A gear wheel15 is secured to the opposite end of the. shaft 13 and mounted intermediate the ends of the shaft and within the'connes of the body is a cylinder 16to the circumference ofwhich is attached a covering of screen wire 17 forming a perforate surface for effectively cutting and crushing the skin and pulp of the grapes.

Secured at intervals to and extending radially from the cylinder 16 are pins 18 cO--operating with the netting or scr-een on the cylinder in cutting and crushing the skin and pulp of the fruit.

Co-operating with the cylinder 16 is a similar cylinder 19 carried by a shaft 20 mounted to rotate `through slots 21 formed in the body and secured to one end of the shaft 2O is a gear wheel 22 arranged to mesh with the gear ywheel 15 previously described.

Both'cylinders are provided at their ends with metal bands 30 to prevent splitting or other damage.

Attached to opposite ends of the body are slotted housings 23 into which are fitted coiled compression springs 24 impinging on the shaft 20 and yieldably holding the roller 19 in (zo-operative posit-ion with the roller 16.

@bvi'ously should a hard object, such as a stone or pebble, enter between the cylinders, it will pass harmlessly through by pushing the cylinder 19. away from the cyl inder 16 against the compression of the springs 24. Y

In the modification illust-rated in Figure 3, the cylinder is designated by the numeral `25 and is provided in its surface. with a plurality of radial recesses 26 for the recepl tion of coiled compression springs 27, the outer ends of which impinge against the flanges 28 of the plungers 29 which are substituted forvthe radial pins 18. In this way it will be seen that theplungers will act to cut and crush the pulp and skins but will yield when encountering a hard substance so as to avoid breakage.

From the foregoing it will be seen that a simple device for this purpose has been disclosed in the preferred formof its embodiment, but it is not desired to restrict the details to the exact construction shown, it being obvious that changes, not involvin the exercise of invention, may be made Wit out conflicting with the Vscope of the. appended claims. V-

Having thus described my invention, What I claim as new andvdesire tosecure by Let ters Patent, is

1. A device of the class described `comprising a portable casing having converging upper Walls andan open rectangular body, a pair of shafts rotatably mounted in the Walls of the body, said shafts being geared t0- operate vin unison, means for manually actuating said shafts, cylindrical Wooden rolls Xedon said shafts, bands at the ends of said rolls, a coarse meshed nettingcircumjacent .said rolls, said rollsV being recessed .to agree with the openings in 2o the netting, .and spring irnpelled plungers disposed in the mentioned recesses to normally extend outward.

2. A device of the class `described comprising a portable casing having converging upperwallsand an open rectangular body, a Vpair of shafts rotatably mounted in the Walls of the body .in Va horizontal plan-e, said shafts being 'geared to operate in unison, means for manually actuating said shafts, cylindrical Wooden rolls Xed on said shafts, Va lplurality of normally extending, 'retractible disintegrating elements set in 

